diff --git a/src/content/changelog/android-tap-to-pay-1.1.1.md b/src/content/changelog/android-tap-to-pay-1.1.1.md
new file mode 100644
index 00000000..48149606
--- /dev/null
+++ b/src/content/changelog/android-tap-to-pay-1.1.1.md
@@ -0,0 +1,14 @@
+---
+title: "Android Tap-to-Pay 1.1.1"
+tags: ["Android Tap-to-pay SDK", "Android", "SDK"]
+publishedDate: 2026-04-08
+---
+
+### New Features
+
+- Improved security
+- Improved transaction speed
+
+### Important
+
+- Starting from this version, [core library desugaring](https://developer.android.com/studio/write/java8-support#library-desugaring) is required
diff --git a/src/content/docs/terminal-payments/sdks/android-ttp.mdx b/src/content/docs/terminal-payments/sdks/android-ttp.mdx
index 7d9f11a0..52807473 100644
--- a/src/content/docs/terminal-payments/sdks/android-ttp.mdx
+++ b/src/content/docs/terminal-payments/sdks/android-ttp.mdx
@@ -23,6 +23,7 @@ The Android Tap-to-Pay SDK enables your mobile app to accept card-present contac
 - `targetSDK`/`compileSDK`: 34 or later
 - Android Gradle Plugin: 7.3.0 or later
 - Java 17 or later
+- [Core library desugaring](https://developer.android.com/studio/write/java8-support#library-desugaring) enabled (required since SDK version 1.1.1)
 - maven repository credentials (to access the SDK repository, request by emailing integration@sumup.com).
 - A Secret API key, if not using OAuth 2.0 authentication. You can generate a Secret API key on the [API keys page](https://me.sumup.com/settings/api-keys) in the SumUp Dashboard.
 
@@ -66,7 +67,21 @@ You can use the sample app provided in the [GitHub repository](https://github.co
 2. Add the dependency to a module `build.gradle`:
 
    ```kotlin
-   implementation("com.sumup.tap-to-pay:utopia-sdk:1.0.6")
+   implementation("com.sumup.tap-to-pay:utopia-sdk:1.1.1")
+   ```
+
+3. Starting from SDK version 1.1.1, [core library desugaring](https://developer.android.com/studio/write/java8-support#library-desugaring) is required. Add the following to your module `build.gradle`:
+
+   ```kotlin
+   android {
+       compileOptions {
+           isCoreLibraryDesugaringEnabled = true
+       }
+   }
+
+   dependencies {
+       coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:2.1.5")
+   }
    ```
 
 ### Authentication